Easy "Pugnacity" Achievement
Intentionally fail and restart a level ten times consecutively, without using the "Skip" option. Try using levels with early evaporating environmental hazards such as the Nursery level "Green Flow". It also features Venus Fly Traps to help complete the task.
Easy "Quack-Quack" Achievement
Complete the Nursery level "Dionaea" with a silver medal or higher rank to unlock the duck. Go to the main menu, select "Laboratory", select "Mode" then select the duck. Place the duck save the game. The main menu animation will drop the liquid and will push the duck, causing it to quack. Note: Because the duck quacks on impact, it is better to place it above ground. Consider using the top of the screen. When you play the animation, it will fall to the ground and quack on impact.
Easy "The price to pay" Achievement
Play the "Kieselguhrs" level in the "Laboratory" chapter. After you getting past the first required explosion, you will find a ramp surrounded by three lasers. At that ramp, have ten nitroglycerine drops on the lasers then complete the level.
Easy "Pugnacity" Achievement...